Patent · US Active

Magnetic tracker with dual-transmit frequency

US10416333B2 · kind B2 · utility

1Cited by
6References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 19, 2017
Grant dateSep 17, 2019
Priority date—
Expiry dateMay 19, 2037

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W88/02
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A system of a transmitter and a receiver uses magnetic fields to determine the relative position and orientation, or pose, of the two devices. For example, the transmitter could be a handheld control device and the receiver could be an augmented reality or other computing solution. The transmitter transmits two magnetic fields of differing frequencies and differing amplitudes. The receiver selects the one of the magnetic fields with the higher signal to noise ratio to determine the relative pose of the transmitter. By using two magnetic fields of different amplitudes, the pose can be determined over a wider range of separations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.